When positioned between your Seaview mount and the mounting surface, this Base Wedge angles your radar down 2° to compensate for deck angle or the planing attitude of your boat. Constructed of a tough marine-grade polymer, the wedge is designed to fit all Seaview mounts with a 7" x 7" base plate. Pre-drilled mounting holes allow for quick and easy installation. Model#: PM-W2-7. Compensates for deck angle or planing attitude Tough marine-grade polymer construction Fits all Seaview mounts with 7" x 7" base plate | 2° Wedge for 7" x 7" Radar Mount Base Plate